1092 lines
31 KiB
C++
1092 lines
31 KiB
C++
/*
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******************************************************************************
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* Xenia : Xbox 360 Emulator Research Project *
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******************************************************************************
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* Copyright 2013 Ben Vanik. All rights reserved. *
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* Released under the BSD license - see LICENSE in the root for more details. *
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******************************************************************************
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*/
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#include <xenia/cpu/libjit/libjit_emit.h>
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using namespace xe::cpu;
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using namespace xe::cpu::ppc;
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namespace xe {
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namespace cpu {
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namespace libjit {
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// Integer arithmetic (A-3)
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XEEMITTER(addx, 0x7C000214, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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// RD <- (RA) + (RB)
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if (i.XO.OE) {
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// With XER update.
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// This is a different codepath as we need to use llvm.sadd.with.overflow.
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// TODO(benvanik): handle overflow exception.
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jit_value_t v = jit_insn_add_ovf(f,
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e.make_signed(e.gpr_value(i.XO.RA)),
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e.make_signed(e.gpr_value(i.XO.RB)));
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e.update_gpr_value(i.XO.RT, v);
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//e.update_xer_with_overflow(b.CreateExtractValue(v, 1));
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if (i.XO.Rc) {
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// With cr0 update.
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e.update_cr_with_cond(0, v, e.get_int64(0), true);
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}
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} else {
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// No OE bit setting.
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jit_value_t v = jit_insn_add(f,
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e.make_signed(e.gpr_value(i.XO.RA)),
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e.make_signed(e.gpr_value(i.XO.RB)));
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e.update_gpr_value(i.XO.RT, v);
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if (i.XO.Rc) {
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// With cr0 update.
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e.update_cr_with_cond(0, v, e.get_int64(0), true);
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}
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}
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return 0;
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}
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XEEMITTER(addcx, 0x7C000014, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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XEINSTRNOTIMPLEMENTED();
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return 1;
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}
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XEEMITTER(addex, 0x7C000114, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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XEINSTRNOTIMPLEMENTED();
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return 1;
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}
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XEEMITTER(addi, 0x38000000, D )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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// if RA = 0 then
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// RT <- EXTS(SI)
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// else
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// RT <- (RA) + EXTS(SI)
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jit_value_t v = e.get_int64(XEEXTS16(i.D.DS));
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if (i.D.RA) {
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v = jit_insn_add(f, e.gpr_value(i.D.RA), v);
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}
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e.update_gpr_value(i.D.RT, v);
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return 0;
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}
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XEEMITTER(addic, 0x30000000, D )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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// RT <- (RA) + EXTS(SI)
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// TODO(benvanik): track exception
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jit_value_t v = jit_insn_add_ovf(f, e.make_signed(e.gpr_value(i.D.RA)),
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e.get_int64(XEEXTS16(i.D.DS)));
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e.update_gpr_value(i.D.RT, v);
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// e.update_xer_with_carry(b.CreateExtractValue(v, 1));
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return 0;
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}
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XEEMITTER(addicx, 0x34000000, D )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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XEINSTRNOTIMPLEMENTED();
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return 1;
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}
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XEEMITTER(addis, 0x3C000000, D )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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// if RA = 0 then
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// RT <- EXTS(SI) || i16.0
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// else
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// RT <- (RA) + EXTS(SI) || i16.0
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jit_value_t v = e.get_int64(XEEXTS16(i.D.DS) << 16);
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if (i.D.RA) {
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v = jit_insn_add(f, e.gpr_value(i.D.RA), v);
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}
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e.update_gpr_value(i.D.RT, v);
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return 0;
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}
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XEEMITTER(addmex, 0x7C0001D4, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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XEINSTRNOTIMPLEMENTED();
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return 1;
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}
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// XEEMITTER(addzex, 0x7C000194, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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// // RT <- (RA) + CA
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// Function* sadd_with_overflow = Intrinsic::getDeclaration(
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// e.gen_module(), Intrinsic::sadd_with_overflow, jit_type_nint);
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// jit_value_t ca = jit_insn_and(f, jit_insn_ushr(f, e.xer_value(), 29), 0x1);
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// jit_value_t v = b.CreateCall2(sadd_with_overflow,
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// e.gpr_value(i.XO.RA), ca);
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// jit_value_t add_value = b.CreateExtractValue(v, 0);
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// e.update_gpr_value(i.XO.RT, add_value);
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// if (i.XO.OE) {
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// // With XER[SO] update too.
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// e.update_xer_with_overflow_and_carry(b.CreateExtractValue(v, 1));
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// } else {
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// // Just CA update.
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// e.update_xer_with_carry(b.CreateExtractValue(v, 1));
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// }
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// if (i.XO.Rc) {
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// // With cr0 update.
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// e.update_cr_with_cond(0, add_value, e.get_int64(0), true);
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// }
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// return 0;
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// }
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XEEMITTER(divdx, 0x7C0003D2, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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XEINSTRNOTIMPLEMENTED();
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return 1;
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}
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XEEMITTER(divdux, 0x7C000392, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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XEINSTRNOTIMPLEMENTED();
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return 1;
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}
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// XEEMITTER(divwx, 0x7C0003D6, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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// // dividend[0:31] <- (RA)[32:63]
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// // divisor[0:31] <- (RB)[32:63]
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// // if divisor = 0 then
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// // if OE = 1 then
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// // XER[OV] <- 1
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// // return
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// // RT[32:63] <- dividend ÷ divisor
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// // RT[0:31] <- undefined
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// jit_value_t dividend = e.trunc_to_int(e.gpr_value(i.XO.RA));
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// jit_value_t divisor = e.trunc_to_int(e.gpr_value(i.XO.RB));
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// // Note that we skip the zero handling block and just avoid the divide if
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// // we are OE=0.
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// BasicBlock* zero_bb = i.XO.OE ?
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// BasicBlock::Create(*e.context(), "", e.fn()) : NULL;
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// BasicBlock* nonzero_bb = BasicBlock::Create(*e.context(), "", e.fn());
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// BasicBlock* after_bb = BasicBlock::Create(*e.context(), "", e.fn());
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// b.CreateCondBr(b.CreateICmpEQ(divisor, b.get_int32(0)),
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// i.XO.OE ? zero_bb : after_bb, nonzero_bb);
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// if (zero_bb) {
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// // Divisor was zero - do XER update.
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// b.SetInsertPoint(zero_bb);
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// e.update_xer_with_overflow(b.getInt1(1));
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// b.CreateBr(after_bb);
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// }
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// // Divide.
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// b.SetInsertPoint(nonzero_bb);
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// jit_value_t v = b.CreateSDiv(dividend, divisor);
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// v = e.sign_extend(v, jit_type_nint);
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// e.update_gpr_value(i.XO.RT, v);
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// // If we are OE=1 we need to clear the overflow bit.
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// if (i.XO.OE) {
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// e.update_xer_with_overflow(b.getInt1(0));
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// }
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// if (i.XO.Rc) {
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// // With cr0 update.
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// e.update_cr_with_cond(0, v, e.get_int64(0), true);
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// }
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// b.CreateBr(after_bb);
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// // Resume.
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// b.SetInsertPoint(after_bb);
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// return 0;
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// }
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// XEEMITTER(divwux, 0x7C000396, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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// // dividend[0:31] <- (RA)[32:63]
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// // divisor[0:31] <- (RB)[32:63]
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// // if divisor = 0 then
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// // if OE = 1 then
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// // XER[OV] <- 1
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// // return
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// // RT[32:63] <- dividend ÷ divisor
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// // RT[0:31] <- undefined
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// jit_value_t dividend = e.trunc_to_int(e.gpr_value(i.XO.RA));
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// jit_value_t divisor = e.trunc_to_int(e.gpr_value(i.XO.RB));
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// // Note that we skip the zero handling block and just avoid the divide if
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// // we are OE=0.
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// BasicBlock* zero_bb = i.XO.OE ?
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// BasicBlock::Create(*e.context(), "", e.fn()) : NULL;
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// BasicBlock* nonzero_bb = BasicBlock::Create(*e.context(), "", e.fn());
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// BasicBlock* after_bb = BasicBlock::Create(*e.context(), "", e.fn());
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// b.CreateCondBr(b.CreateICmpEQ(divisor, b.get_int32(0)),
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// i.XO.OE ? zero_bb : after_bb, nonzero_bb);
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// if (zero_bb) {
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// // Divisor was zero - do XER update.
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// b.SetInsertPoint(zero_bb);
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// e.update_xer_with_overflow(b.getInt1(1));
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// b.CreateBr(after_bb);
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// }
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// // Divide.
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// b.SetInsertPoint(nonzero_bb);
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// jit_value_t v = b.CreateUDiv(dividend, divisor);
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// v = e.zero_extend(v, jit_type_nint);
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// e.update_gpr_value(i.XO.RT, v);
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// // If we are OE=1 we need to clear the overflow bit.
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// if (i.XO.OE) {
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// e.update_xer_with_overflow(b.getInt1(0));
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// }
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// if (i.XO.Rc) {
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// // With cr0 update.
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// e.update_cr_with_cond(0, v, e.get_int64(0), true);
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// }
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// b.CreateBr(after_bb);
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// // Resume.
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// b.SetInsertPoint(after_bb);
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// return 0;
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// }
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XEEMITTER(mulhdx, 0x7C000092, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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XEINSTRNOTIMPLEMENTED();
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return 1;
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}
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XEEMITTER(mulhdux, 0x7C000012, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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XEINSTRNOTIMPLEMENTED();
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return 1;
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}
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XEEMITTER(mulhwx, 0x7C000096, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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XEINSTRNOTIMPLEMENTED();
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return 1;
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}
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XEEMITTER(mulhwux, 0x7C000016, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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XEINSTRNOTIMPLEMENTED();
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return 1;
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}
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XEEMITTER(mulldx, 0x7C0001D2, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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XEINSTRNOTIMPLEMENTED();
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return 1;
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}
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XEEMITTER(mulli, 0x1C000000, D )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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// prod[0:127] <- (RA) × EXTS(SI)
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// RT <- prod[64:127]
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// TODO(benvanik): ensure this has the right behavior when the value
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// overflows. It should be truncating the result, but I'm not sure what LLVM
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// does.
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jit_value_t v = jit_insn_mul(f, e.gpr_value(i.D.RA),
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e.get_int64(XEEXTS16(i.D.DS)));
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e.update_gpr_value(i.D.RT, v);
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return 0;
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}
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XEEMITTER(mullwx, 0x7C0001D6, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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// RT <- (RA)[32:63] × (RB)[32:63]
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if (i.XO.OE) {
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// With XER update.
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XEINSTRNOTIMPLEMENTED();
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return 1;
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}
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jit_value_t v = jit_insn_mul(
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f, e.sign_extend(e.gpr_value(i.XO.RA), jit_type_nint),
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e.sign_extend(e.gpr_value(i.XO.RB), jit_type_nint));
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e.update_gpr_value(i.XO.RT, v);
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if (i.XO.Rc) {
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// With cr0 update.
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e.update_cr_with_cond(0, v, e.get_int64(0), true);
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}
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return 0;
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}
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// XEEMITTER(negx, 0x7C0000D0, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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// // RT <- ¬(RA) + 1
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// if (i.XO.OE) {
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// // With XER update.
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// // This is a different codepath as we need to use llvm.ssub.with.overflow.
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// // if RA == 0x8000000000000000 then no-op and set OV=1
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// // This may just magically do that...
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// Function* ssub_with_overflow = Intrinsic::getDeclaration(
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// e.gen_module(), Intrinsic::ssub_with_overflow, jit_type_nint);
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// jit_value_t v = b.CreateCall2(ssub_with_overflow,
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// e.get_int64(0), e.gpr_value(i.XO.RA));
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// jit_value_t v0 = b.CreateExtractValue(v, 0);
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// e.update_gpr_value(i.XO.RT, v0);
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// e.update_xer_with_overflow(b.CreateExtractValue(v, 1));
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// if (i.XO.Rc) {
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// // With cr0 update.
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// e.update_cr_with_cond(0, v0, e.get_int64(0), true);
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// }
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// return 0;
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// } else {
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// // No OE bit setting.
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// jit_value_t v = b.CreateSub(e.get_int64(0), e.gpr_value(i.XO.RA));
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// e.update_gpr_value(i.XO.RT, v);
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// if (i.XO.Rc) {
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// // With cr0 update.
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// e.update_cr_with_cond(0, v, e.get_int64(0), true);
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// }
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// return 0;
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// }
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// }
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XEEMITTER(subfx, 0x7C000050, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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// RT <- ¬(RA) + (RB) + 1
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if (i.XO.OE) {
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// With XER update.
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// This is a different codepath as we need to use llvm.ssub.with.overflow.
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// TODO(benvanik): handle overflow exceptions.
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jit_value_t v = jit_insn_sub_ovf(f,
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e.make_signed(e.gpr_value(i.XO.RB)),
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e.make_signed(e.gpr_value(i.XO.RA)));
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e.update_gpr_value(i.XO.RT, v);
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//e.update_xer_with_overflow(b.CreateExtractValue(v, 1));
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if (i.XO.Rc) {
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// With cr0 update.
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e.update_cr_with_cond(0, v, e.get_int64(0), true);
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}
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return 0;
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} else {
|
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// No OE bit setting.
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jit_value_t v = jit_insn_sub(f,
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e.make_signed(e.gpr_value(i.XO.RB)),
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e.make_signed(e.gpr_value(i.XO.RA)));
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e.update_gpr_value(i.XO.RT, v);
|
||
|
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if (i.XO.Rc) {
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// With cr0 update.
|
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e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
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}
|
||
|
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return 0;
|
||
}
|
||
}
|
||
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XEEMITTER(subfcx, 0x7C000010, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
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XEINSTRNOTIMPLEMENTED();
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return 1;
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}
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// XEEMITTER(subficx, 0x20000000, D )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
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// // RT <- ¬(RA) + EXTS(SI) + 1
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// Function* ssub_with_overflow = Intrinsic::getDeclaration(
|
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// e.gen_module(), Intrinsic::ssub_with_overflow, jit_type_nint);
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// jit_value_t v = b.CreateCall2(ssub_with_overflow,
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// e.get_int64(XEEXTS16(i.D.DS)), e.gpr_value(i.D.RA));
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// e.update_gpr_value(i.D.RT, b.CreateExtractValue(v, 0));
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// e.update_xer_with_carry(b.CreateExtractValue(v, 1));
|
||
|
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// return 0;
|
||
// }
|
||
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XEEMITTER(subfex, 0x7C000110, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
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// RT <- ¬(RA) + (RB) + CA
|
||
|
||
// TODO(benvanik): possible that the add of rb+ca needs to also check for
|
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// overflow!
|
||
|
||
// TODO(benvanik): handle overflow exception
|
||
jit_value_t ca = jit_insn_and(f, jit_insn_ushr(f, e.xer_value(),
|
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e.get_uint32(29)),
|
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e.get_uint64(0x1));
|
||
jit_value_t v = jit_insn_add_ovf(f,
|
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e.make_unsigned(jit_insn_neg(f, e.gpr_value(i.XO.RA))),
|
||
e.make_unsigned(jit_insn_add(f, e.gpr_value(i.XO.RB), ca)));
|
||
e.update_gpr_value(i.XO.RT, v);
|
||
|
||
// if (i.XO.OE) {
|
||
// // With XER update.
|
||
// e.update_xer_with_overflow_and_carry(b.CreateExtractValue(v, 1));
|
||
// } else {
|
||
// e.update_xer_with_carry(b.CreateExtractValue(v, 1));
|
||
// }
|
||
|
||
if (i.XO.Rc) {
|
||
// With cr0 update.
|
||
e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(subfmex, 0x7C0001D0, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(subfzex, 0x7C000190, XO )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
|
||
// Integer compare (A-4)
|
||
|
||
XEEMITTER(cmp, 0x7C000000, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// if L = 0 then
|
||
// a <- EXTS((RA)[32:63])
|
||
// b <- EXTS((RB)[32:63])
|
||
// else
|
||
// a <- (RA)
|
||
// b <- (RB)
|
||
// if a < b then
|
||
// c <- 0b100
|
||
// else if a > b then
|
||
// c <- 0b010
|
||
// else
|
||
// c <- 0b001
|
||
// CR[4×BF+32:4×BF+35] <- c || XER[SO]
|
||
|
||
uint32_t BF = i.X.RT >> 2;
|
||
uint32_t L = i.X.RT & 1;
|
||
|
||
jit_value_t lhs = e.gpr_value(i.X.RA);
|
||
jit_value_t rhs = e.gpr_value(i.X.RB);
|
||
if (!L) {
|
||
// 32-bit - truncate and sign extend.
|
||
lhs = e.trunc_to_int(lhs);
|
||
lhs = e.sign_extend(lhs, jit_type_nint);
|
||
rhs = e.trunc_to_int(rhs);
|
||
rhs = e.sign_extend(rhs, jit_type_nint);
|
||
}
|
||
|
||
e.update_cr_with_cond(BF, lhs, rhs, true);
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(cmpi, 0x2C000000, D )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// if L = 0 then
|
||
// a <- EXTS((RA)[32:63])
|
||
// else
|
||
// a <- (RA)
|
||
// if a < EXTS(SI) then
|
||
// c <- 0b100
|
||
// else if a > EXTS(SI) then
|
||
// c <- 0b010
|
||
// else
|
||
// c <- 0b001
|
||
// CR[4×BF+32:4×BF+35] <- c || XER[SO]
|
||
|
||
uint32_t BF = i.D.RT >> 2;
|
||
uint32_t L = i.D.RT & 1;
|
||
|
||
jit_value_t lhs = e.gpr_value(i.D.RA);
|
||
if (!L) {
|
||
// 32-bit - truncate and sign extend.
|
||
lhs = e.trunc_to_int(lhs);
|
||
lhs = e.sign_extend(lhs, jit_type_nint);
|
||
}
|
||
|
||
jit_value_t rhs = e.get_int64(XEEXTS16(i.D.DS));
|
||
e.update_cr_with_cond(BF, lhs, rhs, true);
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(cmpl, 0x7C000040, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// if L = 0 then
|
||
// a <- i32.0 || (RA)[32:63]
|
||
// b <- i32.0 || (RB)[32:63]
|
||
// else
|
||
// a <- (RA)
|
||
// b <- (RB)
|
||
// if a <u b then
|
||
// c <- 0b100
|
||
// else if a >u b then
|
||
// c <- 0b010
|
||
// else
|
||
// c <- 0b001
|
||
// CR[4×BF+32:4×BF+35] <- c || XER[SO]
|
||
|
||
uint32_t BF = i.X.RT >> 2;
|
||
uint32_t L = i.X.RT & 1;
|
||
|
||
jit_value_t lhs = e.gpr_value(i.X.RA);
|
||
jit_value_t rhs = e.gpr_value(i.X.RB);
|
||
if (!L) {
|
||
// 32-bit - truncate and zero extend.
|
||
lhs = e.trunc_to_int(lhs);
|
||
lhs = e.zero_extend(lhs, jit_type_nint);
|
||
rhs = e.trunc_to_int(rhs);
|
||
rhs = e.zero_extend(rhs, jit_type_nint);
|
||
}
|
||
|
||
e.update_cr_with_cond(BF, lhs, rhs, false);
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(cmpli, 0x28000000, D )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// if L = 0 then
|
||
// a <- i32.0 || (RA)[32:63]
|
||
// else
|
||
// a <- (RA)
|
||
// if a <u i48.0 || SI then
|
||
// c <- 0b100
|
||
// else if a >u i48.0 || SI then
|
||
// c <- 0b010
|
||
// else
|
||
// c <- 0b001
|
||
// CR[4×BF+32:4×BF+35] <- c || XER[SO]
|
||
|
||
uint32_t BF = i.D.RT >> 2;
|
||
uint32_t L = i.D.RT & 1;
|
||
|
||
jit_value_t lhs = e.gpr_value(i.D.RA);
|
||
if (!L) {
|
||
// 32-bit - truncate and zero extend.
|
||
lhs = e.trunc_to_int(lhs);
|
||
lhs = e.zero_extend(lhs, jit_type_nint);
|
||
}
|
||
|
||
jit_value_t rhs = e.get_int64(i.D.DS);
|
||
e.update_cr_with_cond(BF, lhs, rhs, false);
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
// Integer logical (A-5)
|
||
|
||
XEEMITTER(andx, 0x7C000038, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// RA <- (RS) & (RB)
|
||
|
||
jit_value_t v = jit_insn_and(f, e.gpr_value(i.X.RT), e.gpr_value(i.X.RB));
|
||
e.update_gpr_value(i.X.RA, v);
|
||
|
||
if (i.X.Rc) {
|
||
// With cr0 update.
|
||
e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(andcx, 0x7C000078, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// RA <- (RS) & ¬(RB)
|
||
|
||
jit_value_t v = jit_insn_xor(f, e.gpr_value(i.X.RB),
|
||
e.get_int64(-1));
|
||
v = jit_insn_and(f, e.gpr_value(i.X.RT), v);
|
||
e.update_gpr_value(i.X.RA, v);
|
||
|
||
if (i.X.Rc) {
|
||
// With cr0 update.
|
||
e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(andix, 0x70000000, D )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// RA <- (RS) & (i48.0 || UI)
|
||
|
||
jit_value_t v = jit_insn_and(f, e.gpr_value(i.D.RT), e.get_uint64(i.D.DS));
|
||
e.update_gpr_value(i.D.RA, v);
|
||
|
||
// With cr0 update.
|
||
e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(andisx, 0x74000000, D )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// RA <- (RS) & (i32.0 || UI || i16.0)
|
||
|
||
jit_value_t v = jit_insn_and(f, e.gpr_value(i.D.RT),
|
||
e.get_uint64(((uint64_t)i.D.DS) << 16));
|
||
e.update_gpr_value(i.D.RA, v);
|
||
|
||
// With cr0 update.
|
||
e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(cntlzdx, 0x7C000074, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
// XEEMITTER(cntlzwx, 0x7C000034, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// // n <- 32
|
||
// // do while n < 64
|
||
// // if (RS) = 1 then leave n
|
||
// // n <- n + 1
|
||
// // RA <- n - 32
|
||
|
||
// jit_value_t v = e.gpr_value(i.X.RT);
|
||
// v = e.trunc_to_int(v);
|
||
|
||
// std::vector<Type*> arg_types;
|
||
// arg_types.push_back(b.getInt32Ty());
|
||
// Function* ctlz = Intrinsic::getDeclaration(
|
||
// e.fn()->getParent(), Intrinsic::ctlz, arg_types);
|
||
// jit_value_t count = b.CreateCall2(ctlz, v, b.getInt1(1));
|
||
|
||
// count = e.zero_extend(count, jit_type_nint);
|
||
// e.update_gpr_value(i.X.RA, count);
|
||
|
||
// if (i.X.Rc) {
|
||
// // With cr0 update.
|
||
// e.update_cr_with_cond(0, count, e.get_int64(0), true);
|
||
// }
|
||
|
||
// return 0;
|
||
// }
|
||
|
||
XEEMITTER(eqvx, 0x7C000238, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(extsbx, 0x7C000774, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// s <- (RS)[56]
|
||
// RA[56:63] <- (RS)[56:63]
|
||
// RA[0:55] <- i56.s
|
||
|
||
jit_value_t v = e.gpr_value(i.X.RT);
|
||
v = e.trunc_to_ubyte(v);
|
||
v = e.sign_extend(v, jit_type_nint);
|
||
e.update_gpr_value(i.X.RA, v);
|
||
|
||
if (i.X.Rc) {
|
||
// Update cr0.
|
||
e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(extshx, 0x7C000734, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(extswx, 0x7C0007B4, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(nandx, 0x7C0003B8, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(norx, 0x7C0000F8, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// RA <- ¬((RS) | (RB))
|
||
|
||
jit_value_t v = jit_insn_or(f, e.gpr_value(i.X.RT), e.gpr_value(i.X.RB));
|
||
v = jit_insn_xor(f, v, e.get_int64(-1));
|
||
e.update_gpr_value(i.X.RA, v);
|
||
|
||
if (i.X.Rc) {
|
||
// With cr0 update.
|
||
e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(orx, 0x7C000378, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// RA <- (RS) | (RB)
|
||
|
||
jit_value_t v = jit_insn_or(f, e.gpr_value(i.X.RT), e.gpr_value(i.X.RB));
|
||
e.update_gpr_value(i.X.RA, v);
|
||
|
||
if (i.X.Rc) {
|
||
// With cr0 update.
|
||
e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(orcx, 0x7C000338, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(ori, 0x60000000, D )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// RA <- (RS) | (i48.0 || UI)
|
||
|
||
jit_value_t v = jit_insn_or(f, e.gpr_value(i.D.RT),
|
||
e.get_uint64((uint64_t)i.D.DS));
|
||
e.update_gpr_value(i.D.RA, v);
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(oris, 0x64000000, D )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// RA <- (RS) | (i32.0 || UI || i16.0)
|
||
|
||
jit_value_t v = jit_insn_or(f, e.gpr_value(i.D.RT),
|
||
e.get_uint64(((uint64_t)i.D.DS) << 16));
|
||
e.update_gpr_value(i.D.RA, v);
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(xorx, 0x7C000278, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// RA <- (RS) XOR (RB)
|
||
|
||
jit_value_t v = jit_insn_xor(f, e.gpr_value(i.X.RT), e.gpr_value(i.X.RB));
|
||
e.update_gpr_value(i.X.RA, v);
|
||
|
||
if (i.X.Rc) {
|
||
// With cr0 update.
|
||
e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(xori, 0x68000000, D )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// RA <- (RS) XOR (i48.0 || UI)
|
||
|
||
jit_value_t v = jit_insn_xor(f, e.gpr_value(i.D.RT),
|
||
e.get_uint64((uint64_t)i.D.DS));
|
||
e.update_gpr_value(i.D.RA, v);
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(xoris, 0x6C000000, D )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// RA <- (RS) XOR (i32.0 || UI || i16.0)
|
||
|
||
jit_value_t v = jit_insn_xor(f, e.gpr_value(i.D.RT),
|
||
e.get_uint64(((uint64_t)i.D.DS) << 16));
|
||
e.update_gpr_value(i.D.RA, v);
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
// Integer rotate (A-6)
|
||
|
||
XEEMITTER(rldclx, 0x78000010, MDS)(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(rldcrx, 0x78000012, MDS)(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(rldicx, 0x78000008, MD )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(rldiclx, 0x78000000, MD )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// n <- sh[5] || sh[0:4]
|
||
// r <- ROTL64((RS), n)
|
||
// b <- mb[5] || mb[0:4]
|
||
// m <- MASK(b, 63)
|
||
// RA <- r & m
|
||
|
||
// uint32_t sh = (i.MD.SH5 << 5) | i.MD.SH;
|
||
// uint32_t mb = (i.MD.MB5 << 5) | i.MD.MB;
|
||
|
||
// jit_value_t v = e.gpr_value(i.MD.RS);
|
||
// if (sh) {
|
||
// v = // rotate by sh
|
||
// }
|
||
// if (mb) {
|
||
// v = // mask b mb->63
|
||
// }
|
||
// e.update_gpr_value(i.MD.RA, v);
|
||
|
||
// if (i.MD.Rc) {
|
||
// // With cr0 update.
|
||
// e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
// }
|
||
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(rldicrx, 0x78000004, MD )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(rldimix, 0x7800000C, MD )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(rlwimix, 0x50000000, M )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// n <- SH
|
||
// r <- ROTL32((RS)[32:63], n)
|
||
// m <- MASK(MB+32, ME+32)
|
||
// RA <- r&m | (RA)&¬m
|
||
|
||
// ROTL32(x, y) = rotl(i64.(x||x), y)
|
||
jit_value_t v = jit_insn_and(f, e.gpr_value(i.M.RT),
|
||
e.get_uint64(UINT32_MAX));
|
||
v = jit_insn_or(f, jit_insn_shl(f, v, e.get_uint32(32)), v);
|
||
// (v << shift) | (v >> (32 - shift));
|
||
v = jit_insn_or(f, jit_insn_shl(f, v, e.get_uint32(i.M.SH)),
|
||
jit_insn_ushr(f, v, e.get_uint32(32 - i.M.SH)));
|
||
uint64_t m = XEMASK(i.M.MB + 32, i.M.ME + 32);
|
||
v = jit_insn_and(f, v, e.get_uint64(m));
|
||
v = jit_insn_or(f, v, jit_insn_and(f, e.gpr_value(i.M.RA),
|
||
e.get_uint64(~m)));
|
||
e.update_gpr_value(i.M.RA, v);
|
||
|
||
if (i.M.Rc) {
|
||
// With cr0 update.
|
||
e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(rlwinmx, 0x54000000, M )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// n <- SH
|
||
// r <- ROTL32((RS)[32:63], n)
|
||
// m <- MASK(MB+32, ME+32)
|
||
// RA <- r & m
|
||
|
||
// The compiler will generate a bunch of these for the special case of SH=0.
|
||
// Which seems to just select some bits and set cr0 for use with a branch.
|
||
// We can detect this and do less work.
|
||
if (!i.M.SH) {
|
||
jit_value_t v = jit_insn_and(f,
|
||
e.trunc_to_int(e.gpr_value(i.M.RT)),
|
||
e.get_uint32((uint32_t)XEMASK(i.M.MB + 32, i.M.ME + 32)));
|
||
v = e.zero_extend(v, jit_type_nint);
|
||
e.update_gpr_value(i.M.RA, v);
|
||
if (i.M.Rc) {
|
||
// With cr0 update.
|
||
e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
// ROTL32(x, y) = rotl(i64.(x||x), y)
|
||
jit_value_t v = jit_insn_and(f, e.gpr_value(i.M.RT), e.get_uint64(UINT32_MAX));
|
||
v = jit_insn_or(f, jit_insn_shl(f, v, e.get_uint32(32)), v);
|
||
// (v << shift) | (v >> (32 - shift));
|
||
v = jit_insn_or(f, jit_insn_shl(f, v, e.get_uint32(i.M.SH)),
|
||
jit_insn_ushr(f, v, e.get_uint32(32 - i.M.SH)));
|
||
v = jit_insn_and(f, v, e.get_uint64(XEMASK(i.M.MB + 32, i.M.ME + 32)));
|
||
e.update_gpr_value(i.M.RA, v);
|
||
|
||
if (i.M.Rc) {
|
||
// With cr0 update.
|
||
e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(rlwnmx, 0x5C000000, M )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
|
||
// Integer shift (A-7)
|
||
|
||
XEEMITTER(sldx, 0x7C000036, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(slwx, 0x7C000030, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// n <- (RB)[59:63]
|
||
// r <- ROTL32((RS)[32:63], n)
|
||
// if (RB)[58] = 0 then
|
||
// m <- MASK(32, 63-n)
|
||
// else
|
||
// m <- i64.0
|
||
// RA <- r & m
|
||
|
||
jit_value_t v = jit_insn_shl(f, e.gpr_value(i.X.RT), e.gpr_value(i.X.RB));
|
||
v = jit_insn_and(f, v, e.get_uint64(UINT32_MAX));
|
||
e.update_gpr_value(i.X.RA, v);
|
||
|
||
if (i.X.Rc) {
|
||
// With cr0 update.
|
||
e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(sradx, 0x7C000634, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(sradix, 0x7C000674, XS )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(srawx, 0x7C000630, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(srawix, 0x7C000670, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
// n <- SH
|
||
// r <- ROTL32((RS)[32:63], 64-n)
|
||
// m <- MASK(n+32, 63)
|
||
// s <- (RS)[32]
|
||
// RA <- r&m | (i64.s)&¬m
|
||
// CA <- s & ((r&¬m)[32:63]≠0)
|
||
|
||
jit_value_t rs64 = e.gpr_value(i.X.RT);
|
||
jit_value_t rs32 = e.trunc_to_int(rs64);
|
||
|
||
jit_value_t v;
|
||
jit_value_t ca;
|
||
if (!i.X.RB) {
|
||
// No shift, just a fancy sign extend and CA clearer.
|
||
v = rs32;
|
||
ca = e.get_int64(0);
|
||
} else {
|
||
v = jit_insn_sshr(f, rs32, e.get_uint32(i.X.RB));
|
||
|
||
// CA is set to 1 if the low-order 32 bits of (RS) contain a negative number
|
||
// and any 1-bits are shifted out of position 63; otherwise CA is set to 0.
|
||
ca = jit_insn_and(f, jit_insn_lt(f, v, e.get_int32(0)),
|
||
jit_insn_lt(f, rs64, e.get_int64(0)));
|
||
}
|
||
v = e.sign_extend(v, jit_type_nint);
|
||
e.update_gpr_value(i.X.RA, v);
|
||
e.update_xer_with_carry(ca);
|
||
|
||
if (i.X.Rc) {
|
||
// With cr0 update.
|
||
e.update_cr_with_cond(0, v, e.get_int64(0), true);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
XEEMITTER(srdx, 0x7C000436, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
XEEMITTER(srwx, 0x7C000430, X )(LibjitEmitter& e, jit_function_t f, InstrData& i) {
|
||
XEINSTRNOTIMPLEMENTED();
|
||
return 1;
|
||
}
|
||
|
||
|
||
void LibjitRegisterEmitCategoryALU() {
|
||
XEREGISTERINSTR(addx, 0x7C000214);
|
||
XEREGISTERINSTR(addcx, 0X7C000014);
|
||
XEREGISTERINSTR(addex, 0x7C000114);
|
||
XEREGISTERINSTR(addi, 0x38000000);
|
||
XEREGISTERINSTR(addic, 0x30000000);
|
||
XEREGISTERINSTR(addicx, 0x34000000);
|
||
XEREGISTERINSTR(addis, 0x3C000000);
|
||
XEREGISTERINSTR(addmex, 0x7C0001D4);
|
||
//XEREGISTERINSTR(addzex, 0x7C000194);
|
||
XEREGISTERINSTR(divdx, 0x7C0003D2);
|
||
XEREGISTERINSTR(divdux, 0x7C000392);
|
||
//XEREGISTERINSTR(divwx, 0x7C0003D6);
|
||
//XEREGISTERINSTR(divwux, 0x7C000396);
|
||
XEREGISTERINSTR(mulhdx, 0x7C000092);
|
||
XEREGISTERINSTR(mulhdux, 0x7C000012);
|
||
XEREGISTERINSTR(mulhwx, 0x7C000096);
|
||
XEREGISTERINSTR(mulhwux, 0x7C000016);
|
||
XEREGISTERINSTR(mulldx, 0x7C0001D2);
|
||
XEREGISTERINSTR(mulli, 0x1C000000);
|
||
XEREGISTERINSTR(mullwx, 0x7C0001D6);
|
||
//XEREGISTERINSTR(negx, 0x7C0000D0);
|
||
XEREGISTERINSTR(subfx, 0x7C000050);
|
||
XEREGISTERINSTR(subfcx, 0x7C000010);
|
||
//XEREGISTERINSTR(subficx, 0x20000000);
|
||
XEREGISTERINSTR(subfex, 0x7C000110);
|
||
XEREGISTERINSTR(subfmex, 0x7C0001D0);
|
||
XEREGISTERINSTR(subfzex, 0x7C000190);
|
||
XEREGISTERINSTR(cmp, 0x7C000000);
|
||
XEREGISTERINSTR(cmpi, 0x2C000000);
|
||
XEREGISTERINSTR(cmpl, 0x7C000040);
|
||
XEREGISTERINSTR(cmpli, 0x28000000);
|
||
XEREGISTERINSTR(andx, 0x7C000038);
|
||
XEREGISTERINSTR(andcx, 0x7C000078);
|
||
XEREGISTERINSTR(andix, 0x70000000);
|
||
XEREGISTERINSTR(andisx, 0x74000000);
|
||
XEREGISTERINSTR(cntlzdx, 0x7C000074);
|
||
//XEREGISTERINSTR(cntlzwx, 0x7C000034);
|
||
XEREGISTERINSTR(eqvx, 0x7C000238);
|
||
XEREGISTERINSTR(extsbx, 0x7C000774);
|
||
XEREGISTERINSTR(extshx, 0x7C000734);
|
||
XEREGISTERINSTR(extswx, 0x7C0007B4);
|
||
XEREGISTERINSTR(nandx, 0x7C0003B8);
|
||
XEREGISTERINSTR(norx, 0x7C0000F8);
|
||
XEREGISTERINSTR(orx, 0x7C000378);
|
||
XEREGISTERINSTR(orcx, 0x7C000338);
|
||
XEREGISTERINSTR(ori, 0x60000000);
|
||
XEREGISTERINSTR(oris, 0x64000000);
|
||
XEREGISTERINSTR(xorx, 0x7C000278);
|
||
XEREGISTERINSTR(xori, 0x68000000);
|
||
XEREGISTERINSTR(xoris, 0x6C000000);
|
||
XEREGISTERINSTR(rldclx, 0x78000010);
|
||
XEREGISTERINSTR(rldcrx, 0x78000012);
|
||
XEREGISTERINSTR(rldicx, 0x78000008);
|
||
XEREGISTERINSTR(rldiclx, 0x78000000);
|
||
XEREGISTERINSTR(rldicrx, 0x78000004);
|
||
XEREGISTERINSTR(rldimix, 0x7800000C);
|
||
XEREGISTERINSTR(rlwimix, 0x50000000);
|
||
XEREGISTERINSTR(rlwinmx, 0x54000000);
|
||
XEREGISTERINSTR(rlwnmx, 0x5C000000);
|
||
XEREGISTERINSTR(sldx, 0x7C000036);
|
||
XEREGISTERINSTR(slwx, 0x7C000030);
|
||
XEREGISTERINSTR(sradx, 0x7C000634);
|
||
XEREGISTERINSTR(sradix, 0x7C000674);
|
||
XEREGISTERINSTR(srawx, 0x7C000630);
|
||
XEREGISTERINSTR(srawix, 0x7C000670);
|
||
XEREGISTERINSTR(srdx, 0x7C000436);
|
||
XEREGISTERINSTR(srwx, 0x7C000430);
|
||
}
|
||
|
||
|
||
} // namespace libjit
|
||
} // namespace cpu
|
||
} // namespace xe
|